Water-heater.



Patented Mar. 5', 1912.

A. M. & F. GIRTANNER. WATER HEATER. APPLICATION FILED FEB. 23, 1911 ce M. Gixanner Fredg lpck lrtanner AT RNEYS ALICE 1VI. GIRTANNER AND FREDERICK GIRTANNER, OF ST. LOUIS, MISSOURI.

WATER-HEATER.

To all whom it may concern;

Be it known that we, ALIoE M. GIRTAN- NER and FREDERICK GIETANNER, both citi- Zens of the United States of America, residing at the city of St. Louis, State of Missouri, have invented a certain new and useful Water-I-Ieater, of which the following is such a full, clear, and exact description as will 1 enable any one skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification.

Our invention relates to a water heater and more particularly to a portable heater adapted to be immersed in the water to be heated and adapted to burn gas or other liquid or gaseous fuel.

In the accompanying drawings which illustrate one form of heater made in accordance with our invention, Figure 1 is a vertical longitudinal section; Fig. 2 is a sec tion on the line 2-2 of Fig. 1 and Fig. 3 is a section on the line 3-3 of Fig. 1.

Like characters of reference refer to similar parts in the several views of the drawings.

5 is a plate forming the base of the combustion chamber and preferably supported by means of feet 6. The side walls 7 of the combustion chamber are preferably inclined as shown in Fig. 3 so as to obtain as great area as possible at the top 8 of the combustion chamber, as we have found that this top 8 forms the most effective heating surface in the device.

9 represents the ends of the combustion chamber.

Supported slightly above the plate 5 preferably by means of lugs 10 is a casing 11 forming one part of a burner, the other part of such burner is formed by a casting 12 conforming to the general outline of the casting 11 and fitting thereover as is clearly shown in the drawings. Formed between the parts 11 and 12 of the burner is the gas passage 13 from which the gas escapes through slots 15 formed in the edge of the part 12. The lower edge of the part 12 fits within a ledge 16 so that very small gas outlets are formed by the slots 15. The gas is conveyed into the gas passage 13 through passages 17 shown in Fig. 2, which passages 17 communicate with the supply pipe 18 extending up through the top 8 of the com bustion chamber. The upper end of this supply pipe 18 is provided with a mixer 19 Specification of Letters Patent.

AppIication filed February 23, 1911.

Patented Mar. 5, 1912.

Serial No. 610,324.

of any suitable form. The supply of gas to the mixer 19 is controlled by means of a stop cook 20.

Extending from the pipe 18 just above the stop cook 20 is a short branch pipe 21 provided with a stop cook 22. Connected to this branch pipe 21 is a flexible tube 23 to which is attached a small metal pipe 24 forming an auxiliary burner for lighting the main burner, as will be hereinafter more fully described. Formed within the burner are a pair of openings 26 from which extend upwardly a double walled air conduit for supplying air to the burner. This double walled air conduit consists of an outer conical or pyramidal part 27 and an inner tube The outer part 27 is preferably provided with a lining 29 of asbestos or other non-conducting material. The tubes 28 we tend some distance above the top wall 8 of At each end of tending flue 30. These flues 30 form the outlet for the products of combustion and should extend some distance above the inlet pipes 28. In order to deflect the heated products of combustion downwardly against the surface of the water, we prefer to provide each of the fines 30 with a shield 31. One of these shields 31 is fastened to the flue 30 by means of a hinge 32, as shown at the right hand end of Fig. 1 so that the shield may be thrown back from the top of the flue so as to allow the introduction of the auxiliary burner 24 for igniting the main burner.

33 is a handle by means of which the device may be carried.

34 represents a flexible pipe supplying gas to the supply pipe 18.

The operation of our device is as follows: The pipe 34C being connected to any suitable supply of gas the heater is placed in the water to be heated being entirely surrounded by the water except the tops of the inlet pipes 28 and the fines 80. The stop cook 22 is now turned and the auxiliary burner 241 lighted after which the shield 31 may be thrown back and the auxiliary burner 24 introduced through the flue 30 into the bottom of the combustion chamber. The stop cock 20 is now turned to allow the supply of gas to pass in through the supply pipe 18 to the main burner. When the gas escapes from the main burner it will be lighted by the auxiliary burner, after which products.

the auxiliary burner may be removed and the shield 31 returned to its normal position. The products of combustion fill the combustion chamber and pass up through the fines 30. The shields 31 deflect the heated products of combustion down against the surface of the water and thus aid in extracting all the heat possible from the said Fresh air is supplied to the burner through the inlet pipes 28; these pipes being protected by the walls 27 with their lining 29 do not become heated and consequently the draft is not interfered with. It will be evident that as soon as the water has become sufficiently heated by our device the supply of gas may be out ofi? and the device removed by its handle 33.

Having fully described our invention, what we claim as new and desire to secure by Letters Patent of the United States, is:

1. In a portable water heater, the combination with a combustion chamber adapted to be submerged in the water to be heated, of a burner arranged in said chamber, an air inlet supplying air to said burner, an outlet for the products of combustion leading from said chamber, and a shield carried by said outlet for deflecting said products downwardly against the water in which the heater is submerged.

2. In a portable water heater, the combination with a combustion chamber adapted to be submerged in the water to be set our hands and affixed our seals in the i presence of the two subscribing witnesses.

ALICE M. GIRTANNER. [1,. 8.] FREDERICK GIRTANNER. [1,. s.]

Witnesses:

ELIZABETH BAILEY, WV. A. ALEXANDER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

